Lock for revolving doors



Feb. 6, 1940. 1-. M. HAGENBOOK LOCK FOR REVOLVING DOORS Filed May 15, 1938 3 Sheets-Sheet 1 IN V EN TOR.

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v (J ATTORNEY 7 3 Sheets-Sheet 2 Feb. 6, 1940. I 1-. M. HAGENBOOK LOCK FOR REVOLVING DOORS Filed May 13, 1938 Feb. 6, 1940. T. M. HAGENBOOK 2,189,712

LOCK FOR REVOLVING DOORS Filed May 1s, 1.938 s Sheets-Sheet s Patented F ch. 6, I 1940 PATENT OFFICE LOOK FOR REVOLVING DOORS Thurloe M. Hagenbook, Evansville, Ind, assignor to International Door Company, Evansville, Ind, a corporation of Illinois Application May 13, 1938, Serial No. 207,816

13 Claims.

My invention relates broadly to looks and more particularly to an improved lock system for revolving doors.

One of the objects of my invention is to provide a lock system which is substantially burglarproof.

Another object of. myinvention is to provide a lock system for revolving doors wherein it is practically impossible to remove the looks from the revolving door wings when only one side of the revolving .door wing is accessible.

Another object of my invention is to provide a construction of lock system for revolving doors in which'coacting lock structures may be actuated from opposite sides of the revolving door wings for enabling the revolving door wings to be selectively locked in a. position for closing the revolving door drum. I

Another object of my invention is to provide a construction of lock in which locks having different length cylinders may be used without having to shim out longer cylinders and in which the lock cylinders may be controlled from opposite sides of the door.

Another object of my invention is to provide a construction of lock for revolving doors in which a locking bar may be shifted vertically with respect to revolving door wings for engagement in a latch receiving aperture in the ceiling of the drum of the revolving door. I

Still another object of my invention is to provide an arrangement of, locking means for revolving doors in which locking bars having two limiting positions may be shifted from an. engaged position to a disengaged position, andviceversa, by operation of either of two locking .de-

vices adaptedto be actuated from oppositesides of the revolving door wings.

' Still another object of my invention is to pro.

, vide a construction of locking mechanism for revolving doors in which a pair of locking devices are provided and are individually operative from opposite sides of the revolving door wing equipped with the locking mechanism, the locking devices equipped with the locking system of my invention engage in sockets in the ceiling structurefof the with the improved locking system of my invention; Fig. 2 is a horizontal section taken on line 2-2, of Fig. 1; Fig. 3 is a vertical sectional view taken on line 3-3 of Fig. 2, looking in the direction of the arrows, the locking bar being shown 6 i in its lowermost or unlocked position; Fig. 4 is a similar view to Fig. 3, showing the key inserted and the lock operated to move the locking bar in an upward direction and into the socket provided in the ceiling of the revolving door drum; Fig. 5 is a similar view to Fig. 3 except-from the front of the lock; Fig. 6 is a face View of one of the coacting members of the lock; Fig. .7 is a vertical section through the lock; Fig. 8 is a central, vertical; longitudinal section through-the lock and adjacent parts showing the look cylinders in elevation; Fig. 9 is a vertical transverse section taken on line 9-9 of Fig. 7; Fig. 10 is a similar view to Fig. 9, showing the key inserted and the lock operated to withdraw the sliding locking plate; Fig. 11 is a horizontal section taken on line ll-H of Fig. 7; Fig. 12 is a horizontal section taken on line I2-l2- of Fig. 7; Fig. 1-3 is an elevational view of one of the coacting members comprising the lock, the upper locking cylinder and the spring pressed locking member; Fig. 14 is a perspective view of the sliding locking memb er; Fig. 15 is a perspective view of the casing forming part of, the improved lock; and Fig. 16 is a perspective view of the spring coacting wit the retractible locking member.

' My invention is directed to-an improved ,construction of locking system for revolving doors which is inexpensive and simple in construction and positive in operation. The locking system of my invention is substantially burglar-proof and yet it is not essential that a completely enclosed revolving door .drum be required. Two or more of the wings of the revolving door may be so that when the wings so equipped are symmetrically positioned with'respect to the entrance of the revolving door drum, a locking bar individual to the revolving door wings may be operated to revolving door drum whereby for. all practical purposes, a substantially burglar-proof entranceway for revolving doors is established. It is prac tically impossible to remove the locking bars from the revolving .door wings when only one side or the wings is accessible because the locking mechanism is mounted in the revolving door wings by screw devices extending from. opposite sides of the revolving door wings. The locking mechanism is so mounted with respect to each revolving door wing that the complete locking mechanism is vertically shiftable with respect to the revolving door wing for engaging or disengaging the locking bar with respect to a socket in the ceiling structure of the revolving door drtun. The locking mechanism is housed within a carrier which is vertically shiftable within. limits by operation the locking mechanism by a key insertable in the locking mechanism from either side of. the revolving door wing. Separate coacting lock devices are arranged on opposite sides of the revolving door wing. The coacting lock devices are both operative with respect to the same retractible member. Similar movement may be imparted to the retractible member by operation of either of the lock devices actuated from opposite sides of the revolving door wing. The movement of the locking mechanism permitted for engagement or disengagement of the locking bar is limited to a relatively short path and yet is sufficient to effect proper engagement or disengagement cf the locking bar individual to the revolving door wing with respect to a properly aligned socket in the ceiling structure of the revolving door drum. The lock devices coact with each other in functioning the rctractible member for permitting movement of the locking mechanism to either of two limiting positions.

The construction of the mechanism of my invention is such that locks having different length cylinders may be used without having to shim out longer cylinders. The structure of my invention has been found to be highly compact in arrangement and while I have explained my invention in one cl its preferred embodiments, I desire that the disclosure herein be regarded in the illustrative sense and not in the limiting sense.

Referring to the drawings in detail, reference character i designates the drum of a revolving door having a ceiling structure 2 with respect to which central shaft 3 is journalled for rotary movement. The revolving door wings are illustrated at l, 5, 6 and l, suitably supported with respect to central shaft 3. The revolving door wings or selected wings are equipped with the locking mechanism of my invention shown generally at 8 and 9.

The locking mechanism includes locking bars Hi and H, which are confined in vertical movement within narrow limits with respect to the revolving door wings 4 and 5 respectively by means of strap members I?! and M respectively. The ceiling structure 2 contains the inserted socket members l5 and 16 adapted to receive the ends of locking bars it! and H respectively when the locking bars are projected with respect to the revolving door wing. The socket members I5 and iii are located in such positions on opposite sides of the center of the entrance-way of the revolving door drum that the entrance-way is wholly obstructed when wings 4 and 5 are moved to a position in which locking bars I [I and Il are engaged in sockets l5 and 16. When the locking bars Ill and ii are projected into engagement within sockets l5 and I6 as represented, for example, by the condition illustrated in Fig. 4, the entrance-way is completely obstructed and is substantially burglar-proof. The locking mechanism is so constructed that it is practically impossible to remove the locking mechanism from the revolving door wings when only one side of the wings is accessible, as illustrated in Fig. 1, because in order to remove the locking mechanism, screws must be removed from opposite sides of the revolving door wings.

The locking mechanism will be understood more clearly by reference to Figs. 13-14, from which it will be seen that there are two plate members constituting the closure means for the locking mechanism as shown at I! and 8. The plate members I! and i8 each carries lock supporting plates l9 and 20 respectively. The lock supporting plates IQ and 20 are complementary with respect to each other and have abutting end portions lea and 20a and l9b and 26b respectively. The abutting end portions are aligned by means of pins 2| and 22, which extend into aligned apertures in the ends 49a and 29a and I8!) and 28b respectively. The lock supporting plates l9 and 20 are shaped to provide a substantially hollow interior at 24. The lock supporting plate members and the plate members l1 and it are mutually interconnected by means of screws 25 and 729 which pass through plate member 17 and through end portions Ga and EM) of lock supporting plate l9 and engage within screw threads in projecting portions 20a and 20b of lock supporting plate 20; while screws 2'? and 28 pass through plate member [3 and through lock supporting plate 20 and engage in end portions [8a and 917 of lock supporting plate 19. The lock supporting plates 15 and 20 are thus interconnected by screws which pass through plates IT and 18. allowing plates l'l and I8 and the lock supporting plates connected therewith to be shifted vertically for moving locking bar Ill into engaged position or retracting bar ID from engaged position. In order to provide for the precision alignment of the lock supporting plates with respect to the revolving door structure, I provide a liner or frame-like member 30 which fits within recess 3! in the wing of the revolving door, The liner or frame 38 is secured in position in recess 3| by suitable screws 32 and 33 which pass through the frame or liner 3!) into the material of the revolving door wing. The frame or liner 36 serves as a guide for the lock supporting plates l9 and 20 adapted to move with respect to the liner or frame 39. There are two apertures in one wall of the liner or frame 30, indicated at 34 and 35 for receiving the end of the transversely shiftable locking plate 35 as shown more particularly in Figs. 9 and 10. The transversely shiftable locking plate 36 is movable in coacting grooves I and 280 between lock supporting plates I 9 and 20. The transversely shiftable locking plate 36 is disposed centrally of the assembly constituted by the lock supporting plates and is actuatable by separate lock devices. A spring member 37 extends longitudinally of the lock supporting plates and maintained in position therein by means of notches 19d in opposite ends of lock supporting plate 59 and 29d in opposite ends of lock supporting plate 26. Spring 31 tends to continuously urge the transversely shiftable locking plate 36 into engagement with either aperture 34 or 35, subject to retraction under control of either of the locking mechanisms indicated at 4!] and 41. The transversely shiltable plate 36 has a notch 38 in the end thereof adapted to be engaged by spring 31 whereby transversely shiftable plate 35 is continuously urged into engagement with apertures 34 or 35. The plate 36 is centrally apertured as indicated at 39 for receiving the ends of the lock members 40a or 41a by which retraction from apertures 34 or 35 of the shiftable member 36 is effected.

The lockingmechanism 40 includes the face plate and key receiving recess shown generally at'40b which is accessible from the exterior of plate l8. .The cylinder which encloses the looking mechanism is externally screw threaded as indicated at 400- for receiving the nut member 40d. The lock memberflla. may be revolved under control of the key engaged in the look from a stop position 40; for engaging the transversely shiftable locking plate 36 by movement of looking member 4011. through aperture 39 in plate 36 whereby plate 36 may be retracted from aper- .;ture 34 against the pressure of spring 31 for permitting the locking mechanism and associated engaged from socket [5, as illustrated in Fig. 3.

The locking mechanism may be shifted from the disengaged position, illustrated in Fig. 3, to the engaged position, illustrated in Fig. 4, by operation of either the locking mechanism 40 or the locking mechanism 4|, depending upon which ',of the locking mechanisms may be accessible.

The locking mechanism 4| is contained within a screw threaded cylindrical device, illustrated particularly in Fig. 8, in which the cylindrical device is externally screw threaded as representat Ho. The external screw threads are engaged by means of nut Md for maintaining the locking mechanism M in position through plate I! and lock supporting plate' [9. The locking member M a is revolvable under controlof a key Me from a stop position 4|f, insertable into the key receiving recess 4 I b in the locking mechanism 4|. The locking member a is thus revolvable as illustrated in Fig. 10, for retracting plate 36 against the spring pressure of spring 31. Plate 36 when retracted from aperture 35, permits the locking mechanism to be bodily shifted for moving locking bar l into engagement with socket l5.

As represented in Fig. 1, only one" side of the locking mechanism is accessible so that it is practically impossible to remove the locking mechanism from the revolving door wings in view of the fact that the sets of retaining screws must be removed from opposite sides of the locking mechanism.

r The arrangement of the lock devices in the slidable carriage is one in which the lock devices are staggered, thereby conserving space andallowing the advantages ,of my construction to be fully realized. The lockv devices are arranged on opposite sides .ofthe intermediate projectible' transversely sliding plate 36 and so staggered that cylinders of difierent lengths may be readily installed in the slidable carriage. The staggered relationship of the lock devices insures compactness and simplicity of construction.

I have found the locking mechanism of my invention highly practical in its construction and manufacture. While I have described my inven- -tion in one of its preferred embodiments, I de 1. A look comprising arectangular frame, a rectangular hollow body member slidable unilat erally in said frame and having extendedface plates secured thereto on opposite sides of said I frame for retaining said body member within said frame, bar means connected with the slid-'- able assembly of face and body, members, latching means between said body member and said frame, and lock means in said body member for controlling said latching means; said lock means comprising dual cylinder locks mounted on opposite sides of said body member in axially displaced positions on opposite sides of said latchextended actuating surface on said latching means permitting various lengths of cylindrical locks to be mountedin said body member, said locks extending to a greater or lesser depth in said hollow body member.

3. A lock comprising a. liner adapted to be mounted in a recessed portion of a door and havlock assembly selectively engageable with the apertures in said liner, and a connection between the locking bar and the said lock assembly whereby the locking bar may be shifted into en gaged or disengaged position under control of said lock assembly. 1

4. A lock comprising a hollow frame adapted to be secured in an apertured portion of a door and apertured in opposite limiting'positions, a slidable structure mounted within said hollow frame, a locking barconnected with said slidable structure, a pair of lock devices carried by said slidable structure and accessible from opposite sides of the door, and a transversely slidable member actuated by either of said lock devices for selectively engaging either of the apertures in said hollow frame in either of the opposite limiting positions of said slidablestructure.

5. A lock comprising a liner adapted to be mounted in a recessed portion of a door, a vertically .displaceable carriage movable in position in said liner, a locking bar connected with said vertically displaceable carriage, said liner being,

by said vertically displaceable carriage and engageable with said transversely slidable member.

6. A look comprising a frame-like liner adapte ed to fit an aperture in a door, a slidable carriage constituted by a pair of complementary shaped members insertable within the liner, means extending from opposite sides of the door interconnecting said complementary shaped members, a

locking bar connected with said slidable carriage, a transversely slidable member operative between the complementary shaped members, a lock device supported by said slidable carriage and operative with respect to said transversely slidable member, said frame-like liner being apertured in opposite limiting positions for receiving said transversely slidable member in projected position, and means tending to continuously urge said transversely slidable member to projected position.

'7. A look comprising a guide mounted in an apertured portion of a door, a carriage constituted by a pair of complementary shaped members insertable in said guide from opposite sides thereof, means extending from opposite sides of the door for securing said carriage in position with respect to said guide, a locking bar connected with. said carriage, a transversely slidable member operative intermediate said complementary shaped members, said guide being apertured in opposite limiting positions for engagement by said transversely slidable member in projected position, means for continuously urging said transversely slidable member to projected position, and separate lock devices supported by the respective complementary shaped members for actuating said transversely slidable member for allowing displacement of said carriage to either of two limiting positions with respect to said guide.

8. A look comprising a vertically extending guide mounted in an apertured portion of a door,

a vertically shiftable carriage comprising a pair of complementary shaped members mounted in said guide; plate members individual thereto and means interconnecting said complementary shaped members and said plate members whereby said plate members engage the external surfaces of the door and extend beyond the vertically extending guide in the recessed portion thereof for either limit of displacement of the shiftable carriage, a locking bar connected with one of said plate members, a transversely slidable member intermediate said complementary shaped members, and separate lock devices supported by the respective complementary shaped members and independently engageable with said transversely slidable member, said transversely slidable member being engagcable with looking apertures in either of two limiting positions in said vertically extending guide.

9. A look comprising a vertically displaceable carriage mounted in a recessed portion of a door, a locking bar connected with said vertically displaceable carriage, a transversely slidable member mounted in said vertically displaceable carriage for latching said vertically displaceable carriage in either of two limiting positions with respect to the recessed portion of the door, and a lock device supported by said vertically displaceable carriage and engageable with said transversely slidable member for operating said transversely slidable member to permit the vertically displaceable carriage and associated lock ing bar to be shifted from one limiting position to another.

10. A look comprising a vertically displaceablc carriage mounted in a recessed portion of a door, a locking bar connected with said vertically displaceabl'e carriage, a transversely slidable member mounted in said vertically displaceable carriage for latching said vertically displaceable carriage in either of two limiting positions with respect to the recessed portion of the door, and lock devices supported in opposite sides of said carriage and key actuated from opposite sides of the door, said lock devices being independently operative with respect to said transversely slidable member and having means for retracting said transversely slidable member with respect to the recessed portion of the door for permitting said vertically displaceable carriage to be moved from one limiting position to another.

11. A look comprising a vertically displaceable carriage constituted by complementary shaped members projecting into opposite sides of an apertured portion of a door and aligned end to end to provide a substantially hollow interior between 4 the complementary shaped members, a locking bar connected with said vertically displaceable carriage, a transversely slidable member intermediate said complementary shaped members, means carried by said complementary shaped members for normally urging said transversely slidable member to a latching position with respect to the apertured portion of the door for maintaining said vertically displaceable carriage in either oftwo limiting positions, and a lock supported in each of the complementary shaped members and operative from respectively opposite sides of the door and projecting into the hollow interior of said complementary shaped members, said locks being independently operative with respect to said transversely slidable ember and having means for retracting said transversely slidable memberand permitting displacement of the verticallydisplaceable carriage to either of two limiting positions.

12. A locl: comprising a carriage vertically slidable with respect to a recessed portion of a door, a locking bar connected with said carriage. said carriage having a substantially hollow interior, a transversely slidable latching member operative within the hollow interior of said carriage, means for normally urging said transversely slidable latching member into projected ongagement with respect to the recessed portion of the door, and lock devices mounted on said carriage on opposite sides of said transversely slidable latching member and operative with respect thereto and having means for displacement of said transversely slidable latching member and permitting said carriage to be shifted to' either of the limiting positions thereof.

13. A look comprising a carriage vertically slidable with respect to an apertured portion of a door, a locking bar connectec with said carriage, said carriage having a substantially hollow interior, a transversely slida'ole latching member operative within the hollow interior of said carriage, means for normally urging said transversely slidable latching member into projected engagement with respect to the apertured portion of the door, and lock devices mounted in opposite sides of said carriage and on opposite sides of said transversely slidable latching member and having means for controlling said transversely slidable latching member from opposite sides of said door for allowing said carriage to be shifted to either of the limiting positions thereof.

THURLOE M. HAGENBOOK.

(Ill 

